Great application! I sent a suggestion to your sales email address but I though I would post it here in case anyone else feels the same way.
I use a pre-paid calling card for long distance but I may use it in different cities and therefore have different access numbers. I have set up a different 'card' in EasyDialer for each access number and labeled them with the city I want to use it in. When the calling card runs out of $$, I have to change the PIN in each card entry. It would be nice in future versions to be able to set this up so I can enter the PIN only once and it will be used in each of the 'cards'.